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Understanding Hardwood Lumber Grading ; This article from Independent Sawmill & Woodlot Magazine covers the basics. September 21, 2001 ; Maximizing Lumber from a Log ; Can quartersawing produce as much usable lumber as one company claims?
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www.woodweb.com/KnowledgeBase/KBPPLumberGrading.html
www.woodweb.com/KnowledgeBase/KBPPLumberGrading.html
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Common Lumber Defects ... Lumber Grading Stamp ... Here's a chart to help explain the grading system. Grades are listed from highest to lowest.
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www.lowes.com/lowes/lkn?action=howTo&p=Build/StrtWWood....
www.lowes.com/lowes/lkn?action=howTo&p=Build/StrtWWood.html
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For example, there are specific grades of lumber to be used as scaffolding. Scaffold planking has very specific requirements that are not met by most lumber. This publication will explain the basic divisions of softwood lumber and their intended uses. ... Table 1; National Grading Rule lumber classes...
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extension.missouri.edu/publications/DisplayPub.aspx?P=G...
extension.missouri.edu/publications/DisplayPub.aspx?P=G5053
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To put the various grades in perspective, it might be helpful to have some grounding in certain lumber terms that are taken into account when grading lumber. Wane is a bark-like build-up on the size of a piece of lumber.
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www.essortment.com/home/lumbergrades_sibr.htm
www.essortment.com/home/lumbergrades_sibr.htm
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Softwood lumber grading and general discussion about softwood lumber. ... For purposes of grading, softwood lumber may be categorized into two categories of intended use: construction or remanufacture. Construction lumber is lumber that will function as graded and sized after primary processing - sawing , surfacing, etc.
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www.woodbin.com/ref/wood/softwood_grades.htm
www.woodbin.com/ref/wood/softwood_grades.htm
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NHWA Lumber Grading ... For all of you out there that have not been through a NHWA grading course or school, and don’t have the grading rules handbook, I will explain the main differences. Once a person understands better the grading rules, you will see why we don’t combine FAS and Select.
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www.logs-to-lumber.com/Combining.html
www.logs-to-lumber.com/Combining.html
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Structural lumber generally uses different terminology including such things as #1, #2, and #3 structural, superior, stud, utility, and several others. Ask your lumber dealer to explain the system by which their lumber is graded; ... The specific grading rules are much more complex, but this is the general idea.
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www.theqandatimes.com/artman/publish/article_816.shtm
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In the United States, standards for grading hardwood are set by the National Hardwood Lumber Assn. The standards are voluminous, replete with exceptions, special rules for certain species, and many details.
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www.sizes.com/materls/lumberHard.htm
www.sizes.com/materls/lumberHard.htm
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The National Lumber Grades Authority (NLGA) was incorporated under Letters Patent by the Minister of Corporate and Consumer Affairs on January 12, 1971, as the organization responsible for writing, interpreting and maintaining Canadian lumber grading rules and standards. ... NLGA National Lumber Grades Authority...
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